Guard your heart above all else, for it is the source of life. Every Christian is locked in a constant, intense war with demonic forces. Many of us become so intent on fighting the external spiritual war that we forget that much of our battle is not with external forces, but with our own mind and thoughts.
James 1:14–16 tells us, “Each person is tempted when they are dragged away by their own evil desire and enticed. Then, after desire has conceived, it gives birth to sin; and sin, when it is full-grown, gives birth to death. Don’t be deceived, my dear brothers and sisters.” Sin always begins in the mind. A sinner must first conceive and dwell on the sinful action before he actually carries it out. The first line of defense, therefore, must be to refuse to even contemplate a wrongful action. The apostle Paul tells us to take every thought captive, so that it conforms to the will of God (2 Corinthians 10:3–5).